put the image you want to blur in the background and hit space how does image blurring works? : you take an image and you make one pixel's color the colors of the pixels around it ,I add it all up and then divide it. you do that to every single pixel and wham blurred image ik its not very blurry its because it need to code it by hand , but you can press that button again and it will double it
thanks CHYeow for the codes cuz i'm lazy to write everything